(a) A file shall be established for each community at the time initial consideration is given to studying that community in order to establish whether or not it contains flood-prone areas. Thereafter, the file shall include copies of all correspondence with officials in that community. As the community is tentatively identified, provided with base flood elevations, or suspended and reinstated, documentation of such actions by the Federal Insurance Administrator shall be placed in the community file. Even if a map is administratively rescinded or withdrawn after notice under part 65 of this subchapter or the community successfully rebuts its flood-prone designation, the file will be maintained indefinitely.